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- /* Copyright 2021 Nick Brassel (@tzarc)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #pragma once
-
- #include <stdbool.h>
- #include <stdint.h>
- #include <stdlib.h>
- #include <stdio.h>
-
- #include "qp_internal.h"
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // Stream API
-
- typedef struct qp_stream_t qp_stream_t;
-
- #define qp_stream_get(stream_ptr) (((qp_stream_t *)(stream_ptr))->get((qp_stream_t *)(stream_ptr)))
- #define qp_stream_put(stream_ptr, c) (((qp_stream_t *)(stream_ptr))->put((qp_stream_t *)(stream_ptr), (c)))
- #define qp_stream_seek(stream_ptr, offset, origin) (((qp_stream_t *)(stream_ptr))->seek((qp_stream_t *)(stream_ptr), (offset), (origin)))
- #define qp_stream_tell(stream_ptr) (((qp_stream_t *)(stream_ptr))->tell((qp_stream_t *)(stream_ptr)))
- #define qp_stream_eof(stream_ptr) (((qp_stream_t *)(stream_ptr))->is_eof((qp_stream_t *)(stream_ptr)))
- #define qp_stream_setpos(stream_ptr, offset) qp_stream_seek((stream_ptr), (offset), SEEK_SET)
- #define qp_stream_getpos(stream_ptr) qp_stream_tell((stream_ptr))
- #define qp_stream_read(output_buf, member_size, num_members, stream_ptr) qp_stream_read_impl((output_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
- #define qp_stream_write(input_buf, member_size, num_members, stream_ptr) qp_stream_write_impl((input_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
-
- uint32_t qp_stream_read_impl(void *output_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
- uint32_t qp_stream_write_impl(const void *input_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
-
- #define STREAM_EOF ((int16_t)(-1))
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // Stream definition
-
- struct qp_stream_t {
- int16_t (*get)(qp_stream_t *stream);
- bool (*put)(qp_stream_t *stream, uint8_t c);
- int (*seek)(qp_stream_t *stream, int32_t offset, int origin);
- int32_t (*tell)(qp_stream_t *stream);
- bool (*is_eof)(qp_stream_t *stream);
- };
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // Memory streams
-
- typedef struct qp_memory_stream_t {
- qp_stream_t base;
- uint8_t * buffer;
- int32_t length;
- int32_t position;
- bool is_eof;
- } qp_memory_stream_t;
-
- qp_memory_stream_t qp_make_memory_stream(void *buffer, int32_t length);
-
- ////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
- // FILE streams
-
- #ifdef QP_STREAM_HAS_FILE_IO
-
- typedef struct qp_file_stream_t {
- qp_stream_t base;
- FILE * file;
- } qp_file_stream_t;
-
- qp_file_stream_t qo_make_file_stream(FILE *f);
-
- #endif // QP_STREAM_HAS_FILE_IO
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